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Related Experiment Videos

Methicillin-resistant Staphylococcus aureus disease in three communities.

Scott K Fridkin1, Jeffrey C Hageman, Melissa Morrison

  • 1Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA. skf0@cdc.gov

The New England Journal of Medicine
|April 9, 2005
PubMed
Summary

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Community-associated Methicillin-resistant Staphylococcus aureus (MRSA) infections are common and serious, often affecting skin in children. Hospitalization is frequent for these MRSA cases.

Area of Science:

  • Infectious Diseases
  • Public Health
  • Epidemiology

Background:

  • Emergence of Methicillin-resistant Staphylococcus aureus (MRSA) in patients without traditional risk factors.
  • Unclear national burden and clinical impact of this novel MRSA presentation.

Purpose of the Study:

  • To evaluate the burden and characteristics of community-associated MRSA infections.
  • To identify risk factors and clinical outcomes associated with community-associated MRSA.

Main Methods:

  • Population-based and hospital-based surveillance in Baltimore, Atlanta, and Minnesota.
  • Patient interviews and medical record reviews to classify infections.
  • Classification of infections as community-associated MRSA if no established risk factors were identified.

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Main Results:

  • 1647 community-associated MRSA cases reported (8-20% of all MRSA isolates).
  • Incidence varied by site and was higher in children and Black individuals.
  • Most infections involved skin/soft tissue (77%), with frequent antimicrobial resistance (73%); 23% of patients were hospitalized.

Conclusions:

  • Community-associated MRSA infections represent a common and significant public health issue.
  • Skin and soft tissue infections are predominant, particularly in children.
  • Hospitalization is a common outcome for these infections.